55results about How to "Easy on-site application" patented technology

The present invention provides a high voltage circuit breaker switch-on and switch-off speed characteristic measurement method based on machine vision. While the motion of a high voltage circuit breaker is recorded, a high speed camera is used to shoot the color mark of the surface of an observed moving part, a recorded video image is processed and identified through a machine vision algorithm, the position coordinate of the observed object of each frame of image of a video relative to a reference point is determined, the movement track of the observed object is obtained, and thus the switch-on and switch-off speeds of a high voltage circuit breaker moving contact are calculated. The installation of a sensor in a mechanical mode is not needed, only the setting of a color reference mark at an observation point is needed, a sensor is not need to replace for different measurement objects, and only the change of the position of a reference mark is needed. In addition, the linear motion or rotation speed can be measured, the field application is facilitated, the influence of an environmental condition of the equipment is small, and the need of online measurement of power switch equipment such as a high voltage circuit breaker in a live operation can be satisfied.

The invention discloses a mechanical arm tool coordinate system self-calibration method, and belongs to the field of correlation technique of robot calibration. The method is applicable to an XYZR cartesian coordinate robot, and comprising the steps of utilizing a self point position of the robot for calibrating a tool center point; and through adjusting multiple points and corresponding multipleposition data of a tool fixedly arranged on a rotary shaft at the tail end of a mechanical arm and a top until the required points are recorded, circle fitting the recorded point position data to obtain a center coordinate, and obtaining a tool coordinate according to a coordinate geometry relationship. According to the mechanical arm tool coordinate system self-calibration method provided by theinvention, no external measurement tool is required, the tool coordinate system can be identified relative to a pose of a terminal coordinate system by utilizing self conditions, so that the method issimple and convenient for field application of the equipment party.

The invention provides a remediation agent for heavy metal contaminated soil as well as a preparation method and a using method of the remediation agent. The remediation agent is prepared from the following components in parts by weight: 20-80 parts of a mineral material, 10-70 parts of a biomass material, 5-40 parts of a redox agent, 5-50 parts of an adsorbent and 0-30 parts of a pH regulator. The preparation method comprises the following steps: mixing the five components according to a formula ratio, grinding, and screening to obtain the remediation agent for the heavy metal contaminated soil. The using method comprises the following steps: mixing the remediation agent for heavy metal contaminated soil with compound contaminated soil, adjusting the water content of the compound contaminated soil, and carrying out soil conservation and remediation. The remediation agent for the heavy metal contaminated soil can reduce the migration and bioavailability of the soil by reducing the heavy metal leaching concentration of the soil, thereby realizing the stabilization of the soil for the various heavy metals; the remediation agent for the heavy metal contaminated soil has the advantagesof being low in cost, short in repair period, good in repair effect, wide in application range and free from secondary pollution, and the like.

The present invention provides an ultra-high pressure gas reservoir production dynamic abnormal data diagnosis and correction method. The linear relationships between high-pressure stage normalization pseudo-pressure p

and pressure p, and between high-pressure stage normalization pseudo-pressure p

and apparent formation pressure p/z are adopted, the normalization pseudo-pressure yield qg/Delta p

and substance balance pseudo-time t<ca> in Pslacio-Blasingame and Agarwal-Gardner decline curves are simplified, a standard flow characteristic curve of an ultra-high pressure gas well is established; the actual production curve of the ultra-high pressure gas well is compared with the standard flow characteristic curve of the ultra-high pressure gas well, so as to judge whether the actual production curve of the ultra-high pressure gas well is abnormal or not and judge the causes of abnormity. The calculation process of the established standard flow characteristic curve of the ultra-high pressure gas well is simple and the work load is small, and the calculation process facilitates on-site application; establishment of the ultra-high pressure abnormal well well-bottom flow pressure tracking and correction method considers the effects of change in the number of the communicated gas reservoir production wells and the gas well production adjustment on well controllable reserves, and thus the forecast result error is reduced.

The present invention relates to the testing technology field of electronic equipments, especially to a method and system used for assessing circuit boards corrosion risks. According to the method, the surface insulation resistance values of circuit boards are measured and are compared with the corrosion risks discrimination mapping of the circuit boards to get the corrosion risk levels of circuit boards. The present invention also provides a system used for quickly on-site assessing the circuit boards corrosion risks, which comprises a circuit board, a testing module and a discrimination module, wherein the testing module is used for measuring the surface insulation resistance value of the circuit board and sending the measured value to the discrimination module, the discrimination module is used for comparing the surface insulation resistance value measured with the corrosion risks discrimination mapping to get the corrosion risk level of the circuit board. By using surface insulation resistance values easily got on-site to indicate the circuit boards corrosion risks, the present invention is capable of quickly on-site assessing the corrosion risk of a circuit of a board, and then exhibits excellent effect about adopting some protection measures of the circuit board in time.

The invention discloses a method for pulsed argon arc welding of a titanium alloy and pure aluminum. The method comprises the following steps of: polishing a silicon-aluminum alloy filling welding wire by using a piece of fine sand paper before welding; and before the pulsed argon arc welding, polishing a chamfer angle at a joint on one side of the titanium alloy, scraping a joint on one side of the pure aluminum, and butting flat plates of the titanium alloy and the pure aluminum. The welding parameters of the pulsed argon arc welding are that: the background current is 40 to 60 A, the pulse current is 38 to 80 A, the pulse duration is 5 to 10 s, the pulse frequency is 35 to 65 Hz, the welding voltage is 8 to 16 V, the argon flow is 6 to 18 L/min, the distance between a welding gun nozzle and a workpiece is 8 to 12 mm, and the included angle between a welding gun tungsten electrode and the workpiece is 70 to 85 degrees. The welding gun is cooled after welding, and the cooling mode is preferred to be water cooling mode. According to the method for pulsed argon arc welding of the titanium alloy and the pure aluminum, the arc stability is obviously improved, the tensile strength of a welding joint is not lower than the tensile strength of a pure aluminum parent metal, and the operating requirements on titanium alloy and aluminum welding components in production can be met.

The invention discloses a clay stabilizing agent suitable for low-permeability oil pool, which comprises the following materials in percentage by weight: 0.8-98% of (2-hydroxyethyl)trimethylammonium chloride, 0-20% of inorganic salt containing ammonium or potassium ions, and the balance of tap water or oil field return water. The clay stabilizing agent effectively prevents the clay from swelling, can achieve the anti-swelling rate more than 90 percent, has good compatibility with HPAM-containing oil field return water without generating floccules and low damage rate of an oil field and is suitable for the low-permeability oil pool developed by infusing the HPAM-containing oil field return water.

The invention provides a high temperature resistance gel plugging agent and a preparation method and an application thereof. Raw material of the high temperature resistance gel plugging agent include,100% by weight, the following components: 2%-5% of sulfonation modification polysaccharide, 0.01%-0.025% of an initiator, 20%-25% of a small molecule monomer, 1.2%-1.5% of a cross-linking agent A, 1.3%-1.7% of a cross-linking agent B, 0.04%-0.1% of a curing agent, 0.03%-0.3% of a pH conditioning agent, with the balance being water. The high temperature resistance gel plugging agent provided by the invention is high in pressure bearing capacity, can meet basic performance requirements of non-well killing job on a gel system, is particularly suitable for the field of underbalanced operation ofmedium and high pressure oil and gas wells, is controllable in glue forming time, is wide in range of application, is good in temperature resistance, can adapt to a temperature range of 100-150 DEG C,is simple in preparation process, and can meet process requirements of field applications of the non-well killing job.

The invention relates to a method for rapidly detecting trace amount explosive and an apparatus thereof, the method employs an ion mobility spectrometry detection technology, the method comprises three steps of ionization, separation and detection of sample molecules, and is characterized in that a surface desorption normal pressure chemical ionization apparatus is taken as an ionization source for implementing ionization; correspondingly, the apparatus takes a surface desorption normal pressure chemical ionization apparatus (2) as the ionization source for replacing an original radioactivity ionization source, and is combined with a sample introduction apparatus (1) of a traditional ion migration spectrum instrument and a separating detection apparatus (3) for ion to be measured, high efficiency detection of high sensitivity, strong pertinency, convenient operation, short detection time and no radioactivity pollution on the explosive can be realized, a technical problem in explosive detection can be solved, and the method for rapidly detecting trace amount explosive and the apparatus can be used for monitoring the explosive on public places on airports, stations and harbors.

The invention discloses a closed-loop control method for cable-stayed-bridge-cable stretching-drawing construction based on influence matrix correction, and belongs to the technical field of bridge construction. The closed-loop control method is characterized in that influence matrixes are corrected according to the error of the cable-force forecasting amount relative to the actually-measured amount in the stretching-drawing construction process, and following stretching-drawing orders are thus corrected. The closed-loop control method mainly includes the steps that (1) a model is establishedand analyzed based on drawings, and cable-force sequence vectors and the influence matrixes in all construction stages are extracted; (2) in all stretching-drawing construction stages, the cable forceis measured, and forecast errors of the cable force are calculated; (3) the influence matrixes are modified based on the forecast errors; (4) the stretching-drawing orders are recalculated based on the system function; (5) the (2), (3) and (4) processes are repeated till stretching-drawing construction is ended. According to the closed-loop control method, field application of an engineer is convenient, field-measurement cable-force information is fed back to structural analysis, and the accuracy and the efficiency of cable-stayed-bridge-cable stretching-drawing construction control are improved.

The invention relates to a detection kit for isothermal amplification of nucleic acid for the white spot syndrome virus and a detecting method thereof. The kit is designed by using a set of LAMP primers as the main body designed according to the gene conserved sequence of the white spot syndrome virus. The kit is provided with eleven agents needed by WSSV detection including SEMP lapping liquid, nucleic acid extract, UNG enzyme, TE buffer solution, enzymolysis buffer solution, LAMP reaction solution and on the like, thus realizing a programmed and standardized detection; therefore, the invention has the advantages of the highest sensitivity, simplicity, rapidity, safety, good specificity and low cost, and the amount of the copies detected with virus can be as low as 26. Only one water-bath is needed to correctly detect the white spot syndrome virus in prawns and aquaculture water within 2 hours by the kit and the detecting method. Moreover, the problem that the detection is subject to interference in the LAMP technology is also solved. The detecting method of the invention is expected to substitute the previous related detecting methods of the white spot syndrome virus, such as the electron microscope method, the TE staining method, the biopsy method, the antibody detecting method, the nucleic acid probe hybridization method and the PCR detecting method.

The invention discloses a live detection device for partial discharge of a GIS cable terminal, and a use method of the device. According to the device, a partial discharge live detector is arranged, and comprises an ultrasonic sensor, an ultrahigh frequency sensor, a charge power supply, and a filter amplification and signal processing display alarm unit. The use method comprises the following steps: penetrating the ultrahigh frequency sensor through a grounding wire of a high-voltage cable; penetrating a current sensor through the high-voltage cable; enabling the partial discharge live detector to be in tight contact with an epoxy body so as to realize partial discharge live detection or real-time monitoring on the GIS cable terminal. With the combination of high frequency detection, ultrasonic wave detection and ultrahigh frequency detection, a power frequency current sensor is adopted as the charge power supply and a phase position signal, correlation of quadrant phase positions I and III and correlation of 100 Hz are taken as judgment criterions, a columnar display manner is adopted, and the device can give out an alarm signal when the value exceeds an alarm value. Live partial discharge detection on the GIS cable terminal can be achieved, real-time monitoring can be also achieved, and the live detection device is simple and convenient to mount and manufacture, and facilitates in-situ application.

The invention discloses an external sensor for GIS (Gas Insulated Switchgear) partial discharge detection. The external sensor comprises an airfoil patch antenna used for receiving an electromagnetic wave signal generated by GIS partial discharge; the outside of the airfoil patch antenna is coated with a sensor shell used for being fixed on a GIS basin type insulator; the sensor shell is also used for encapsulating the airfoil patch antenna and shielding an external disturbance signal; a feed N-type coaxial connector for being connected with an external feed coaxial cable is arranged on the sensor shell; a first coaxial cable for connecting the airfoil patch antenna and the feed N-type coaxial connector is also arranged in the sensor shell. When the sensor is designed, the return loss and the frequency bandwidth of the sensor can be regulated and defined according to the shape, the size and other parameters of the airfoil patch antenna, so as to realize the correspondence between the frequency band of the antenna and a main frequency band of an electromagnetic wave signal leaked from the basin type insulator, therefore, the sensor is ensured to have wider detection bandwidth and higher sensitivity.

The invention relates to a nonlinear ultrasonic detection system and a detection method for a reflective metal creep performance. The nonlinear ultrasonic detection system for the metal creep propertytransmits and receives ultrasonic detection signals through an ultrasonic transducer, and extracts high-order harmonic signals and fundamental wave signals separately by separating the received detection signals, so as to obtain the nonlinear ultrasonic parameters for evaluating the metal creep property. Since the detection system uses only one ultrasonic transducer, the problem that two ultrasonic transducers are difficult to be located in a coaxial position due to the use of two ultrasonic transducers for the detection is avoided in practical applications. The nonlinear ultrasonic detectionmethod based on the detection system has high accuracy and good applicability in the field application of the metal creep.

The invention provides a wireless portable BTM detector. The wireless portable BTM detector comprises a trackside device and a hand-held device; the trackside device is mainly used for receiving and measuring the radio-frequency energy sent by a BTM antenna, measuring the distance between the BTM antenna and a steel rail surface, and also simulating to send an FSK responder message signal, including simulating of different FSK energy magnitudes; a server is established outside the detector, and in data interaction with a BTM host recorder and the detector; the hand-held device is used for sending a test instruction to the server, generating a report and displaying a test result; and connecting lines and chargers of the trackside device and the hand-held device are placed in a portable box.Due to the wireless detector, which can be taken away by being placed in the portable box, networking can be conveniently realized; the test result is automatically uploaded to the server; due to a wireless sending module configured on the BTM host, wireless data interaction with the server is realized; the detector is adaptive to all kinds of existing BTM host interfaces; and field application is greatly convenient.

The invention discloses a state holographic perception data driven power transformer fault prediction method and system. The method comprises the following steps: establishing a historical fault data set of a transformer; the method comprises the following steps: collecting the concentration of gas dissolved in oil in the operation process of a transformer, environment meteorological data reflecting the state of the transformer and other operation data, forming an optimal data set through a sudden change point detection and phase-space reconstruction mode, and building a recent prediction SARIMA model of the concentration of the gas dissolved in the transformer oil; obtaining a prediction result of the concentration change of the dissolved gas in the recent oil of the transformer; based on the relationship between the concentration of the dissolved gas in the oil and other state quantities of the transformer, the concentration of the dissolved gas in the oil changing in real time is obtained; building a transformer fault diagnosis model based on a DBN network; and taking a prediction result of the change of the concentration of the dissolved gas in the oil recently or the concentration of the dissolved gas in the oil changing in real time as an input characteristic quantity of the transformer fault diagnosis model to realize transformer fault prediction. And comprehensive real-time analysis and auxiliary decision making of the operation risk level of the power grid transformer are realized.

The invention discloses a based single pumping heat supply unit heat and power load allocation method based on characteristic coefficients. The lowest heat load and the lowest power load of each unit are taken and used, and the initial heat load and the initial power load of each unit are calculated. The total heat load and total power load are taken and used; the highest heat load, the highest power load and the characteristic coefficients are taken and used; the allocation results of the heat load and the power load of each unit are calculated; then whether the allocation results of the units meet constraint conditions one by one is judged; if each unit meets the allocation result, the allocation result is the finnal result. If one unit does not meet the constraint condition, circulation adjustment is performed till the allocation condition of each unit meets the constraint condition. The method can obtain heat supply unit heat and power load optimization allocation coincident with the traditional linear layout, and the method is simple and convenient for field application.

The invention discloses a high solid content crylic acid-sulfonate copolymer and a preparation method thereof. The method comprises the following steps of: putting mixed liquid of crylic acid monomer and sulfonic acid containing unsaturated monomer into a reaction kettle; adding sodium bisulfite, heating, dripping an initiating agent to perform a copolymerization reaction to obtain light yellow to amber transparent liquid; keeping the temperature to be between 80 and 100 DEG C, concentrating the product to obtain light yellow to amber sticky liquid, and controlling the solid content to be between 60 and 80 percent; adding absolute ethanol into the prepared product, cooling, and keeping on stirring for 2 to 3 hours; and finally adding crystal nucleus sodium acetate, cooling and crystallizing, dehydrating, and drying. In the prepared product, the solid content is more than 95 percent, the molecular weight is between 1,500 and 20,000, the package is simple, and energy consumption in storage and transportation in transferring can be reduced, the field application can be easily controlled, and the dosage amount in use can be reduced. The high solid content crylic acid-sulfonate copolymer has excellent dispersing and scale inhibition effects to ferric ions, calcium carbonate particles and the like.

The invention relates to the field of ferrosilicon production, in particular to a method for measuring mechanical strength of semi-coke, which comprises the steps of sampling, sample preparation, testing and result calculation, wherein the result relative standard deviation (RSD) is less than 10 percent. The method has the advantages that the method is different from a drum test method adopted by national standard coke strength, has the characteristics of small sampling amount, good repeatability and convenience in operation, and is convenient for field application.

The invention relates to a partial discharge on-site calibration method for a high-voltage cable line GIS terminal, and the technical characteristics of the method are that the method comprises the following steps: switching off a circuit breaker, a first disconnecting switch and a second disconnecting switch, and switching on a first grounding knife switch and a second knife switch; switching on a rapid grounding knife switch, and switching off an external grounding connection piece of the rapid grounding knife switch; enabling a partial discharge standard pulse generator to be connected to the external grounding connection piece of the rapid grounding knife switch; enabling a high-frequency current sensor to be clamped on a protection layer grounding line of a GIS terminal direct grounding box; connecting the high-frequency current sensor and a partial discharge measurement device through a coaxial signal line; transmitting a standard partial discharge pulse pC through the partial discharge standard pulse generator, measuring a detection value mV of the partial discharge measurement device, and achieving the on-site calibration of the partial discharge of the GIS terminal. The method is reasonable in design, achieves the on-site calibration function of the partial discharge of the GIS terminal, is high in accuracy, is simple in operation, and is convenient to use.